JPS60112393A - Method for automatic inspection of indicator - Google Patents

Abstract

PURPOSE:To shorten a time needed for collecting data obtained through indicator inspection by giving simultaneously an indicator inspection command to respective sub-relay devices from a main relay device and transferring collectively said data transferred to the sub-relay deivces from the terminal station groups, to the main relay device for each sub-relay device. CONSTITUTION:A main relay device 2 sends out simultaneously an indicator insepection command to a sub-relay device 3 of the 1st-m-th inside its range after receiving the command from a central device 1. The sub-relay device 3 collects indicator inspection data by communicating with ni pieces of terminal station 4 within its range after receiving said command. The data thus collected in a relay device 3 are transferred collectively to the main relay device 2 from each device 3. When the command is fed to the device 3 from the device 1 and also fed to the device 3, the time required for collecting data to the device 2 is shortened than the time for the conventional device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an automatic meter reading system, and particularly to an automatic meter reading system suitable for collecting all meter reading data from a power meter, etc.

[Background of the invention]

For automatic meter reading systems that collect meter reading data that shows the readings of electricity meters installed at consumers, a distribution line transport system that uses high- and low-voltage distribution lines as the signal transmission path is being considered from an economic and maintenance perspective. ing. A standard system configuration using an existing power distribution line as a signal transmission line is used, for example, the one shown in FIG. 1. That is, as shown in FIG. 1, a solid device 1 installed in a business office or the like 10,
Information is transmitted directly or indirectly through other means using a dedicated communication line 5 with the main relay device 2 installed on the high voltage bus 9 of the distribution substation 11. Information is transmitted between the main relay device 2 and the sub-relay device group 3 disposed on the utility pole by using the high-voltage power distribution #6 as a signal transmission path.

Furthermore, information is transmitted between the sub-relay device group and the terminal station group 4 installed at the consumer using the low-voltage power distribution line 7 as a signal transmission path.

Conventionally, when distribution lines are used as signal transmission paths, a so-called metal circuit carrier method has been adopted in which signals are transmitted between the lines on both the high-voltage side and the low-voltage side, or on one of the distribution lines. . However, in this metal circuit system, since the route from the main relay device 2 to the terminal station 4 includes a distribution line 1 that transmits signals using the lines, signals are not mutually transmitted between the relay devices or terminal stations. In order to avoid interference, a meter reading data collection method as shown in Figure 2 is adopted.

That is, as shown in FIG. 2, the main relay device 2 that receives the meter reading command from the solid device 1 first transmits all the meter reading commands to the first sub relay device. The first sub-relay device that received this command sequentially receives the meter reading data from the ni terminal stations 4, and then transmits all of the data to the main relay device. When this data is transmitted to the main relay device 2, the main relay device then transmits the entire meter reading command to the second sub-relay device, and
Meter reading data is obtained from each terminal station 4 in the same manner as when a meter reading command is given to the sub-relay device 3. In this way, the main relay device 2 gives all meter reading commands to each sub relay device in order, and sends the meter reading data obtained from each sub relay device 3 to the solid device 1. For this reason, the conventional system had the disadvantage that it took a long time to read the meter.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide an automatic meter reading system that can shorten the time required for meter reading.

[Summary of the invention]

In order to achieve the above object, the present invention provides a meter reading command from a solid device to a main relay device arranged for each high voltage bus,
This meter reading command is transmitted from the main relay device to the terminal station group via the sub relay device group, and the meter reading data collected at each terminal station is transmitted from each terminal station to the secondary relay device and the main relay device to the intermediate and real devices. In the automatic meter reading method, when a meter reading command is given from the solid equipment to the main relay device, the main relay device simultaneously gives the meter reading command to each sub relay device, and the meter reading command is transmitted from the terminal station group to each sub relay device. The main feature is that the meter reading data collected by each sub-relay device is transmitted to the main relay device.

[Embodiments of the invention]

Preferred embodiments of the present invention will be described below based on the five drawings.

In this embodiment, data is sent and received using the first return method.The system configuration itself is the same as that shown in FIG. 1.The system shown in FIG. In this embodiment, as shown in FIG. 3, the main relay device 2 that receives a meter reading command from the Chuten device 1 simultaneously issues a meter reading command to the first to m-th sub relay devices 3 within its jurisdiction. Send. Each sub-relay device 3 that receives this meter reading command transmits and receives data to and from ni terminal stations 4 within its own jurisdiction, and collects meter reading data.

The meter reading data collected by each relay device 3 is grouped into one for each sub-relay device 3 and transmitted to the main relay device 2.

In this embodiment, when a meter reading command is given from the main relay device 1 to each sub relay device 3, each sub relay device 3
Since the meter reading data is given to the main relay device 2 at the same time, the time for collecting the meter reading data to the main relay device 2 is shorter than in the conventional system.

〔Effect of the invention〕

As explained above, according to the present invention, when a meter reading command is given from the solid device to the main relay device, the main relay device blade)
A meter reading command is simultaneously given to the secondary relay device from the terminal station group, and the meter reading data transmitted from the terminal station group to each relay device is collected for each secondary relay device and transmitted to the main relay device, so the entire time required for meter reading data collection is saved. It has the excellent effect of being able to shorten the length.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an automatic meter reading system using a distribution line transmission line, Fig. 2 is a diagram for explaining the operation of a conventional automatic meter reading system, and Fig. 3 shows an embodiment of the present invention. It is a diagram for fully explaining the operation of the automatic meter reading system.

Claims (1)

[Claims] 1. A meter reading command is given from the solid device to the main relay device placed on each high voltage bus, and this meter reading command is transmitted from the main relay device to the terminal station group via the sub relay device group, and collected at each terminal station. In an automatic meter reading method in which meter reading data is transmitted from each terminal station to a solid device via a sub relay device and a main relay device, when a meter reading command is given from the solid device to the main relay device, the meter reading data is transmitted from the main relay device to the main relay device. Give a gray needle command to each sub-relay device at the same time,
The meter reading data transmitted from the terminal station group to each sub-relay device is collected for each sub-relay device and transmitted to the main relay device.
Automatic meter reading method that detects lj signs.